Improvement in linings for furnaces, safes



AUGUSTUS O. HAMLIN,

f FFIGE.

or BANGOR, MAINE.

IMPROVEMENT IN LININGS FOR FURNACES, SAFES, &c.

Specification forming part of Letters Patent No. 125,951, dated April 23, 1872.

Specification describing a new'and Improved Furnace and Safe Lining Heat'Resistant, &c., invented by AUGUSTUS (J. HAMLIN, of Bangor, in the county of Penobscot and State of Maine.

This invention consists in the application of itacolumite as a lining for safes, furnaces, tuyeres, to the manufacture of crucibles, and similar uses Where its heat-resistiu g quality can be utilized.

The material named is a laminated granular quartz-rock, consisting mainly of quartz-sand, but containing a little tale, and possessing a degree of flexibility when in the lamina. It is, at present, mostly found in the States of North Carolina, South Carolina, and Georgia. Its flexibility allows it to be easily worked into the lining or heat-resisting articles specified, and permits thus the direct and inexpensive application to practical purposes of the valuable properties of quartz and quartzite.

Witnesses:

J. F. RANSON, HUGH Ros'r. 

